Πόσα μικρόβια έχουν τα χέρια σου?! | Κάτια the scientist

ΑΓΑΠΩ ΑΥΤΟ ΤΟ ΒΙΝΤΕΟ! Δεν είναι τέλεια τα αποτελέσματα μου; Δεν ξέρω, im kinda proud.. πως σας φάνηκε; αναμένω να διαβάσω τα σχόλια σας!

Το άρθρο που λεει για το πείραμα αυτό, έχει και άλλα πολλα φυσικά!

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#catvonk #katiathescientist #μικρόβια

[stevebouralexis]

It is not what you use so much- but rather how you use it (i.e. the correct had washing procedure).

The experiment is slightly flawed (or at least your parameters of the experiment might have been edited out and appears to be flawed)

To do this experiment one needs to ensure that the bread slices used are form the same loaf of bread and freshly baked (old bread is just that, old and already starting to breakdown (go mouldy)), the bread needs to be one that does not have too many preservatives as this will skew the results. The bread that is placed in the "clean" bag should be done without the use of a glove. The glove itself will have bacteria on it and you can not put gloves on without your skin touching them and therefore transferring contaminants to the glove. To do this you can either use tongs which have been sanitised (in boiling water for 10 minutes and dried with a clean towel) or simply turn the bag inside out "use it like a glove" place the bread inside and invert the bag and seal it.

There should be no water sprayed onto the bread- the water contains bacteria which you will transfer to the bread- there is enough moisture n the bread to facilitate "growth"

Then proceed with all the elements that you want to test and place the bread in sealed bags as you did. Ensure that the bags are sealed correctly even the tiniest of gaps will let air in which contaminates the bread.

The bags should then be stored in a cool, dry place

Hand washing procedure- this is the most flawed aspect being a scientist with a PhD in Medicine there is a specific way to wash your hands to ensure that they are clean- In non clinical settings, this practice is hardly done correctly. The process that is accepted worldwide is a multi-stage approach it goes as follows:

1. Wet you hands with clean running water (it can be warm or cold), turn off the tap and apply soap.
2. Lather your hands by rubbing them together with soap. Be sure to lather the back of your hand, between your fingers and under your finger nails.
3. Scrub your hands repeating #2 above for 20 seconds (this is a long time)- cheats way of doing it is buy an iwatch OR sing the "happy birthday" song from beginning to end twice.
4. Rinse your hands well under clean, running warm (42C) water
5. Dry your hands using a clean dry towel or air dry.

The scrubbing part is critical to washing hands- the combination of friction of rubbing your hands along with the soap really gets them clean.

If soap is not available and we must use other forms- the concentration of alcohol in the sanitiser is critical, it needs to be above 60% alcohol. The process is similar, scrub your hands like in point 2 but the duration needs to be as long as it takes for the sanitiser to dry (it is roughly 20-30 seconds depending on how much you have put on)

Some "fun" facts-

1. Soap and water should be used to wash your hands whenever possible- Soap reduces the amount of all germs and chemicals on hands.

2. If soap is not available, hand sanitiser is the next best option but it must contain at least 60% alcohol. It is important to note- Alcohol hand sanitisers can reduce the number of microbes on your hands in some situations but they DO NOT eliminate all types of germs

3. Hand sanitisers do not wok well when your hands are visibly dirty or greasy (i.e. hand cream). Hand sanitisers won't remove harmful chemicals either

4. Soap works by destroying the surface membranes of bacteria and viruses- when we scrub our hands with soap as explained above, lifts and with the aid of running water "washes" it away. Hand sanitiser doesn't do that.

5. Soap is classified as an amphiphile- this means that soap contains molecules that are attracted to water and repelled by fats and proteins as well as molecules that are repelled by water and attracted to fts and proteins. bacteria and viruses are very similar, they have fats and proteins on their cell walls so the soap works well to annihilate them.

6. Soap does harbour bacteria and bacteria can grow on soap- this does not mean it shouldn't be used. It is the number and type of bacteria that is critical. So to combat this, soap also contains antimicrobial agents to keep the numbers in balance. These agents are called "preservation systems". This keep the numbers of bacteria down to 500 colony-forming units per mL of soap.

7. when you wash your hands, you are not trying to eliminate all bacteria, what you are doing is reducing the numbers so that your immune system has a good chance of fighting them off.

8. The skin is an organ- It is the largest organ in the body, its job is to prevent the invasion of foreign pathogens while providing a home for commensal microbiota. The skin is home to millions of bacteria, fungi and viruses, most of which are harmless to us. The balance between the good and bad bacteria and the condition of your skin influences whether you get sick or not.

I actually enjoyed watching the video and great to see some content such as this and apologies that this is all in English, my Greek is not that good when it comes to explaining Science/Medicine.



my qualifications:
Bachelor of Science (Microbiology, Immunology, Physiology and neurobiology)
Graduate Diploma in Computer Science
Graduate Diploma in Medical Radiations
Honours in Orthopaedics, Surgery and Trauma
PhD in Medicine.

[fotiniplz]

Πρώτη φορά βλέπω τέτοιου είδος βίντεο και έχω να πω το βρήκα πολύ ενδιαφέρον! Σίγουρα να συνεχίσεις με περισσότερα πειράματα! ❤️

[georgepapageorgiou]

Εισαι τελεια! Πλιιιιιιιζ κανε βιντεο: Διαβαζω τις τρομακτικες σας ιστοριες! Να σου στελνουμε τις δικες μας τρομακτικες εμπειριες και να τις διαβαζεις! (με τον Γιωργο!)

[EllieJaki]

Η Κάτια ο επιστήμονας κυρίες και κύριοι μας άνοιξε τα μάτια και μας έμαθε τι είναι πιο αποτελεσματικό για να καθαρίζουμε τα χέρια μας! Μας έδειξε αλήθειες και τι όντως συμβαίνει με κάθε προϊόν καθαρισμού. Το κάνω share παντού.

[Grg.giannv]

κατια ρεεεεεεε, μας ελειψες κι ερχεσαι με ενα τελειο βιντεο. welcome back kasha!❤❤❤❤❤

[Ellie-]

Φουλ πρωτότυπο!🙌
Τα neon lights είναι υπέροχαα!!

[yannisaravantinos]

Μας έλειψες σε αγαπάμε
Τέλειο βίντεο !

[k_.tzemma._]

Απο τα καλύτερα βίντεο μ'αρέσουν πολύ τέτοια βίντεο με χημικές αντιδράσεις και γενικά που περιέχουν ένα είδος χημείας!!! Συνέχισε Κάτια ότι καλύτερο απλα!!!!

[EllieJaki]

Μπλε Hangies>Πράσινα Hangies (τα wet wipes)

[kalliopikokonozaki]

Είσαι η καλύτερη! Σε λατρεύω! Τέλειο και συχασιαρικο βίντεο προς τη καλή έννοια πάντα!!😍😍😍😍😍😍😍😍

[maria.gavala]

Σήμερα είχα απαίσια διάθεση και εσύ ήσουν αυτή που με έκανες να παίξω ❤️ ένιωθα πως κανένας δεν μπορεί να με κάνει καλύτερα ούτε ο ίδιος μου εαυτός αλλά εσύ Κάτια μου. Εσύ ❤️

[herculespellos]

μας έλειψες Κατια, το στόμα είχε περισσότερα μικρόβια

[christsouk]

Μου άλλαξες όλη μου τη ζωή μετά από το βίντεο προς τα καθαριστικά για τα μικρόβια 😳 thanks!

[eleftheriakoltsara]

Πολύ ωραίο Κάτια!! Μια ιδέα! Θα μπορούσες να το κάνεις και με οινόπνευμα, αλλά και πάλι είναι τέλειο και χρήσιμο τώρα που αρχίζουν τα σχολεία!!!

[ΚατερίναΙωακείμ]

Ειλικρινά θα πρέπει να αρχίζουμε να σκευτομαστε πόσα λάθη κάνουμε με λάθος πράγματα 😱.. κάνε και άλλα τέτοια βίντεο με σύγκριση 👏👏💕

[gkgamer]

Pov: Εγω που τρωω τα νυχια μου την ωρα του βιντεο: 👁👄👁

[ΝεφέληΚαζάντζα-οπ]

πολυ ωραιο βιντεο
απο που περνεις το rose spray

[michalhsv]

Μας έλειψες το βίντεο τέλειο συνέχισε έτσι ❤️❤️❤️

[popiSserk]

ΠΟΛΥ ΩΡΑΙΟ ΤΟ ΒΙΝΤΕΟ ΣΟΥ ΚΑΙ ΕΝΔΙΑΦΕΡΟΝ !!!
ΘΑ ΣΟΥ ΕΛΕΓΑ ΝΑ ΚΑΝΕΙΣ ΤΟ ΙΔΙΟ ΠΕΙΡΑΜΑ ΚΑΙ ΜΕ ΤΟ DETTOL ANTISEPRIC LIQUID ΑΠΟ ΤΟ ΦΑΡΜΑΚΕΙΟ...ΕΧΕΙ ΥΠΟΣΧΕΘΕΙ ΠΟΛΛΑ ΤΟ ΠΑΡΑΠΑΝΩ...

[veniklimentova]

Είναι τέλειο το βίντεο ❤ Όσο για το καθαρό ψωμί σκέφτομαι ότι δημιουργήθηκε μούχλα στο σημείο που το ακουμπήσες με τα γάντια. Μήπως δεν είναι τόσο καθαρά και αυτά όσο νομίζουμε 😃 Είσαι υπέροχη ❤